Laser Irradiation Position Correction for Display Substrate Manufacturing
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Solution Overview
Problem
Existing methods for manufacturing display apparatuses face challenges in predicting and accurately forming transmissive areas, leading to increased defect rates due to uncertainties in laser irradiation on display substrates.
Innovation Solution
A method involving the formation of test areas on display substrates, irradiation with a first laser to determine relative positions, and adjustment of a second laser to correct its irradiation position, allowing for the creation of precise annular or other shaped processing areas, thereby reducing defect rates and improving processing accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If laser irradiation is performed on display substrate without position prediction, then processing can be performed quickly, but manufacturing precision deteriorates due to inability to predict irradiation area
Solution Approach 1:
The patent applies preliminary action by forming a test area on the display substrate before actual laser processing. This test area serves as a reference for predicting the laser irradiation position on the processing area, allowing the system to pre-determine the relationship between test area irradiation and processing area irradiation, thereby improving manufacturing precision without significantly increasing processing complexity
Solution Approach 2:
The patent implements feedback by using the test area irradiation results to correct and predict the laser irradiation position on the processing area. The system measures the actual irradiation position on the test area, compares it with the intended position, and uses this feedback information to adjust and predict the irradiation position on the processing area, ensuring high manufacturing precision
2Reliability
If laser irradiation position is not corrected, then processing efficiency is maintained, but defect rate increases due to inaccurate irradiation positioning
Solution Approach 1:
The patent performs preliminary laser irradiation on a test area to establish a reference for position prediction. This preliminary action allows the system to determine the actual irradiation characteristics and use them to predict the irradiation position on the processing area, thereby reducing defects without requiring extensive time for actual processing corrections
Solution Approach 2:
The patent uses the test area as a copy or model of the processing area. By irradiating the test area first and measuring its response, the system creates a reference model that can be applied to predict and correct the irradiation position on the actual processing area, improving reliability while minimizing time loss through efficient position prediction
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach reduces defect rates by accurately predicting and correcting the laser irradiation position, enhancing the precision and efficiency of forming transmissive areas on display substrates during the manufacturing process.
Implementation Method 1
irradiating a first laser to a test area of a display substrate
Implementation Method 2
forming a first irradiation area by irradiating the first laser to the test area
Implementation Method 3
irradiating a second laser to a processing area of the display substrate
Implementation Method 4
forming a second irradiation area by irradiating the second laser to the processing area
Data Source
AI summary
A method of manufacturing a display apparatus is provided. The method includes forming a test area on a display substrate, irradiating a first laser to the test area and determining relative positions of the test area and a first irradiation area formed by irradiating the first laser to the test area, and correcting a position of a second laser irradiated to the display substrate based on the relative positions of the test area and the first irradiation area.